CN105386776A - Simulation experiment device and method for dust transferring and controlling of mine dry-spraying operation zone - Google Patents

Simulation experiment device and method for dust transferring and controlling of mine dry-spraying operation zone Download PDF

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Publication number
CN105386776A
CN105386776A CN201510676618.4A CN201510676618A CN105386776A CN 105386776 A CN105386776 A CN 105386776A CN 201510676618 A CN201510676618 A CN 201510676618A CN 105386776 A CN105386776 A CN 105386776A
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China
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tunnel
dust
air duct
spray
simulation
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CN201510676618.4A
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CN105386776B (en
Inventor
陈连军
周刚
张琦
程卫民
聂文
邱晗
徐茂
王昊
孙彪
于海明
范韬
陈聪
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Shandong University of Science and Technology
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Shandong University of Science and Technology
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    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
    • E21D11/04—Lining with building materials
    • E21D11/10—Lining with building materials with concrete cast in situ; Shuttering also lost shutterings, e.g. made of blocks, of metal plates or other equipment adapted therefor

Abstract

The invention discloses a simulation experiment device and method for dust transferring and controlling of a mine dry-spraying operation zone. A pressing-in type air duct used for leading air in and an extracting air duct used for extracting air out are arranged in a simulation dry-spraying tunnel. A simulation mineral rail is arranged in the simulation dry-spraying tunnel, and a simulation feeding machine, a simulation mixer and a simulation jet are arranged on the simulation mineral rail. A feeding dust producing mechanism is arranged on the simulation feeding machine. A mixing dust producing mechanism is arranged on the simulation mixer. A jet opening is formed in the simulation jet, a jet opening dust producing mechanism is arranged on the jet opening, the jet opening faces a jet rebound dust producing mechanism arranged in the simulation dry-spraying tunnel, and an atomizing negative-pressure secondary dust precipitating device is arranged on the simulation jet. The simulation experiment device and method can simulate the air flow distribution of different air duct positions in the mine tunnel dry-spraying operation zone in different ventilation modes as well as in non-ventilation states, and can simulate the transferring distribution rules of airborne dust from single dust source and a plurality of dust sources in different dust source positions under different ventilation conditions.

Description

Mine does nature imitation experiment device and the method for the dust migration of spray operation area and control
Technical field
The present invention relates to nature imitation experiment device and the method that spray done by mine, particularly relate to nature imitation experiment device and method that a kind of mine does the dust migration of spray operation area and control.
Background technology
At present, anchor spray cement concrete is one of major way of roadway support, but, the especially dry spray operation of anchor spray cement concrete in implementation process when compound goes out from lance ejection, under high pressure wind action, concrete can produce segregation phenomenon, add the impact by spray plane rebound effect simultaneously, dust particle is caused to be separated diffusion, a large amount of dust is sharply produced at nozzle and by between spray plane, cause the on-the-spot dust concentration of work plane still higher, and this process is one of main dust production resource in whole sprayed mortar operation process.In addition the operation such as dry shotcreting operation material loading, stirring produces a large amount of high concentrate dusts, and when not adopting any dust prevention, mine laneway dry spray operation area dust concentration can reach 1000mg/m 3above, and respirable dust proportion is close to 40%, threatens greatly and harm to healthy the causing of workman.Even if take dust suppression, the situation of most work plane is still quite severe, and dust concentration seriously exceedes national Specification.
In order to reduce the on-the-spot dust concentration of Gan Pen operation area, tunnel, have multiple depositing dust control dirt measure and efficient cleaner both at home and abroad at present, but it is perfect not enough for the Prevention Technique of the dust of Gan Pen operation area, tunnel, not effective dust prevention and control measure, this big chunk reason is not deep enough to the research of the on-the-spot wind-dirt migration rule in Gan Pen operation area, tunnel.For a long time, the migration of wind-dirt under different situations-mist, coupling, settlement law are different, what have is even very complicated, for a certain mine laneway gas done in spray operation area under air current state carry dust transport conditions then the main practical experience according to people select with subjectivity.
Dust migration rule is carried to mine laneway dry spray operation area gas and dust prevention and control technology is studied, significantly can not only reduce mine laneway and do the dust concentration of spraying in the air of operation area, and to other dust suppression work of producing dirt setting of down-hole, there is positive reference function.Gas under studying different air current state and under spray field carries dust migration rule and dust prevention and control technology, determine the optimal parameter of dust removal by ventilation in tunnel, spray dust-reducing system with this, must have a kind of can Gan Pen operation area, real simulation tunnel air current state, dust state, the gas analogue simulation device that carries dust migration state and atomize to disclose the migration of different situations leeward-dirt-mist, coupling, depositing dust rule.By research, dry spray operation area wind-dirt migration rule and negative pressure secondary device for reducing dust and the control dust removing effects of automation air duct in dry spray operation area can be specified, for preferred arrangement negative pressure secondary device for reducing dust and automation air duct provide scientific basis.Final realization reduces Gan Pen operation area, tunnel dust concentration, improves operating environment, thus reduces the incidence of disease of operating personnel's pneumoconiosis, promotes that coal production occupational health level improves.Therefore, research Gan Pen operation area, tunnel dust migration rule and prevention and controls thereof have very important realistic meaning.
Summary of the invention
In view of above-mentioned the deficiencies in the prior art, a kind of mine is the object of the present invention is to provide to do nature imitation experiment device and the method for the dust migration of spray operation area and control.
For solving the problems of the technologies described above, the present invention program comprises:
A kind of nature imitation experiment device doing the dust migration of spray operation area and control for mine laneway, it comprises the analogue simulation dry spray tunnel of being made up of tempered glass, wherein, analogue simulation is done in spray tunnel and is furnished with the forced air duct for importing wind and the pull-out type air duct for extracting wind out, analogue simulation dry spray is provided with simulation mining rail in tunnel, simulation mining rail is provided with emulation material loading machine, emulation mixer and emulation spraying machine, emulation feeder is provided with material loading Chan Chen mechanism, emulation mixer is provided with and stirs Chan Chen mechanism, emulation spraying machine is provided with jet, jet is provided with jet Chan Chen mechanism, jet does the injection bounce-back Chan Chen mechanism of spraying in tunnel towards being arranged in analogue simulation, emulation spraying machine is provided with spraying negative pressure secondary device for reducing dust.
Described nature imitation experiment device, wherein, above-mentioned analogue simulation is done in spray tunnel and is evenly arranged the many metal friction posts of going up a hill for simulating in tunnel, going down the hill, and it is 90 ° to 135 ° that metal friction post upper end and analogue simulation do the angle spraying tunnel inwall.
Described nature imitation experiment device, wherein, above-mentioned metal friction post comprises the first vertical portion, first vertical portion is provided with the extension of horizontal expansion, the upper end of extension is provided with the first elliptical section, first elliptical section is provided with the second vertical portion, the second vertical portion is provided with the second elliptical section, the second elliptical section is provided with support end.
Described nature imitation experiment device, wherein, above-mentioned analogue simulation dry spray tunnel is being provided with monorail crane with forced air duct, pull-out type air duct corresponding position, tunnel has been evenly arranged multiple monorail crane transverse moving mechanism in analogue simulation dry spray, and forced air duct, pull-out type air duct can be moved along corresponding monorail crane.
Described nature imitation experiment device, wherein, above-mentioned forced air duct is connected with a forced blower fan by the first flexible air duct converter, and forced blower fan is configured with the first electrodeless frequency converter; Forced air duct is provided with automation air duct.
Described nature imitation experiment device, wherein, above-mentioned automation air duct is connected with forced air duct, has been evenly arranged multiple baffler in automation air duct, form multiple air-out bar gap between baffler, one end of automation air duct is provided with ventilation butterfly valve; The two ends of automation air duct are provided with the inner air velocity transducer of air duct, the inner distinguished and admirable pressure sensor of air duct.
Described nature imitation experiment device, wherein, above-mentioned pull-out type air duct is connected with a pull-out type Wet-type dust-removal fan by the second flexible air duct converter, and pull-out type Wet-type dust-removal fan is configured with the second electrodeless frequency converter.
Described nature imitation experiment device, wherein, above-mentioned emulation spraying machine is connected with a high-pressure pump by spray pipe, and high-pressure pump is connected with storage tank.
Described nature imitation experiment device, wherein, to be evenly arranged in multiple tunnel sensor of dust concentration in air velocity transducer, tunnel in above-mentioned analogue simulation dry spray tunnel.
Use a method for described nature imitation experiment device, it comprises the following steps:
A, the first electrodeless frequency converter and/or the second electrodeless frequency converter is regulated to realize different wind speed size, generation is stablized distinguished and admirable, regulate automation air duct formation multipath to a certain degree to Whirl deposite tank simultaneously, the distinguished and admirable analogue simulation that enters extruded from forced air duct does spray tunnel, distinguished and admirablely encounter after analogue simulation does spray the meeting head on of front end, tunnel, wind direction alee side migration, if only measure distribution of air flow rule, then do not open spraying negative pressure secondary device for reducing dust, material loading Chan Chen mechanism, stir Chan Chen mechanism, jet Chan Chen mechanism to rebound Chan Chen mechanism with spraying, distinguished and admirable data are collected by air velocity transducer in tunnel, obtain analogue simulation dry spray Nei Ganpen operation area, tunnel distribution of air flow rule,
B, to research wind-dirt migration rule, then immediately above-mentioned steps A, open material loading Chan Chen mechanism, stir Chan Chen mechanism, jet Chan Chen mechanism with spray rebound in Chan Chen mechanism one or several, simulation produces certain density dust, collect related data by sensor of dust concentration in air velocity transducer in tunnel and tunnel, obtain wind-dirt migration rule that analogue simulation does spray single dirt source, Nei Ganpen operation area, tunnel or many dirt source;
C, to research wind-dirt-mist three-phase medium migration, coupling, settlement law, then and then above-mentioned steps B, open material loading Chan Chen mechanism, stir Chan Chen mechanism, jet Chan Chen mechanism with spray some in Chan Chen mechanism or certain is several of rebounding, complete relevant wind speed size to be collected, after dust concentration data, open spraying negative pressure secondary device for reducing dust, negative pressure field and spray field is produced in spraying negative pressure secondary device for reducing dust, carry dust to gas to catch, distinguished and admirable, there is three-phase medium and migrate in dust and droplet simulating in tunnel, coupling, sedimentation, by air velocity transducer in tunnel, in tunnel, sensor of dust concentration collects related data, obtain the wind-dirt-mist migration in single dirt source or many dirt source, coupling, settlement law, draw the best spray parameters needed for sedimentation of different-grain diameter scope dust,
D, to the control dust removing effects under the different air output of research automation air duct, then and then above-mentioned steps C, the rotational angle of quantitative change ventilation butterfly valve, thus the control realized automation air duct air output, realize the closed air curtain of different-effect, related data is collected, the control dust removing effects of the wind-dirt-mist obtaining single dirt source or many dirt source under air curtain effect closed by wind wall air duct and migration, coupling, settlement law by sensor of dust concentration in air velocity transducer, tunnel in tunnel.
A kind of mine provided by the invention does nature imitation experiment device and the method for the dust migration of spray operation area and control, the different draft type in mine laneway dry spray operation area can be simulated, each air duct diverse location, distribution of air flow under stuffy stream mode, under different ventilation condition can be simulated, single dirt source under different dirt source position and many dirt source gas carry dust moving distribution rule, can simulate automation air duct under different condition become the control dirt effect of closed air curtain, wind-dirt-mist the coupling under different ventilation condition can be simulated, migration, settlement law, can the dust-laying effect of test different types nozzle, for research and development high efficiency nozzle provides technical support, also spraying hydraulic pressure can be tested on the impact of atomizing de-dusting effect, for different spray nozzles selects suitable irrigation pressure to provide technical support, by the air current state under control spray field and wind speed size, study the distinguished and admirable impact on spray effect.
Accompanying drawing explanation
Fig. 1 is the structural representation of nature imitation experiment device in the present invention;
Fig. 2 is that in the present invention, metal friction post and analogue simulation do the structural representation spraying tunnel;
Fig. 3 is the structural representation of metal friction post in the present invention;
Fig. 4 is the structural representation of automation air duct in the present invention.
Detailed description of the invention
The invention provides nature imitation experiment device and method that a kind of mine does the dust migration of spray operation area and control, for making object of the present invention, technical scheme and effect clearly, clearly, the present invention is described in more detail below.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
The invention provides a kind of nature imitation experiment device doing the dust migration of spray operation area and control for mine laneway, as shown in Figure 1, it comprises the analogue simulation dry spray tunnel 4 of being made up of tempered glass, analogue simulation dry spray tunnel 4 adopts Semicircular arched cross section, the length that analogue simulation does spray tunnel 4 can be 40m, and increase analogue simulation dry spray tunnel 4 length by the form of welding, analogue simulation dry spray tunnel 4 clear span and clear height are respectively 4.5m, 3.5m, and its height and width can experimentally require to change different height and the combination of width by the mode dismantled and reset, thus achieve head-room, the flexible transformation of width and length, tunnel head seal, afterbody is opening completely, the organic glass collocation cage of reinforcement that tunnel is 0.01-0.03m by thickness is made.And analogue simulation do spray tunnel 4 in be furnished with the forced air duct 6 for importing wind and the pull-out type air duct 24 for extracting wind out, forced air duct 6, pull-out type air duct 24 are axially arranged respectively along tunnel, the radius of forced air duct 6, pull-out type air duct 24 is 0.35m, the distance that forced air duct 6, pull-out type air duct 24 center do spray tunnel 4 base plate to analogue simulation is 2.25m, and forced air duct 6 to analogue simulation does the distance of meeting head on of spray front end, tunnel 4 for 7m.
Analogue simulation dry spray is provided with simulation mining rail 11 in tunnel 4, simulation mining rail 11 is provided with emulation feeder 18, emulation mixer 16 and emulation spraying machine 14, emulation feeder 18 is provided with material loading Chan Chen mechanism 19, emulation mixer 16 is provided with and stirs Chan Chen mechanism 17, emulation spraying machine 14 is provided with jet, jet is provided with jet Chan Chen mechanism 12, jet does the injection bounce-back Chan Chen mechanism 13 of spraying in tunnel 4 towards being arranged in analogue simulation, emulation spraying machine 14 is provided with spraying negative pressure secondary device for reducing dust 15.Simulation mining rail 11 is done spray tunnel 4 along analogue simulation and is axially arranged near the base plate place of a sidewall, and the width of simulation mining rail 11 is 1m, and length is 40m, also can adjust its lengthwise position as required; Simulation mining rail 11 is done along analogue simulation spray posterior-anterior direction, tunnel 4 arrange successively at certain intervals can be fixed on rail while the width that can move axially again be 1m, the high emulation feeder 18 for 2m, emulation mixer 16 and emulation spraying machine 14.Material loading Chan Chen mechanism 19, to stir Chan Chen mechanism 17, jet Chan Chen mechanism 12 and spray the Chan Chen mechanism 13 that rebound the particle size range that can produce dust be 0.1-50 μm, does that to spray the mass flow range producing dust in tunnel 4 be 0-10kg/h to analogue simulation.Spraying negative pressure secondary device for reducing dust 15 comprises storage tank, atomizer passgae, high-pressure pump and nozzle for providing spraying water.After water in storage tank 21 pressurizes by water booster system, form droplet field along atomizer passgae 20 by nozzle ejection.The quantity of nozzle and injection direction can be arranged on spraying negative pressure secondary device for reducing dust 15 as required, install six to ten spraying negative pressure secondary device for reducing dust 15 in the surrounding of emulation spraying machine 14, spraying negative pressure secondary device for reducing dust 15 is apart from analogue simulation dry spray tunnel 4 base plate 1.55m (breathing zone height).Wherein, experimentally need, spraying negative pressure secondary device for reducing dust 15 nozzle can change position and quantity by handling, high-pressure pump 22 also can be utilized to realize the spray field of different pressures, make measured data more comprehensive.It is 0-7m that storage tank 21 stores the water yield 3, the pressure limit that high-pressure pump 22 provides is 0-16Mpa.
Further, as shown in Figure 2, above-mentioned analogue simulation is done in spray tunnel 4 and is evenly arranged the many metal friction posts 27 of going up a hill for simulating in tunnel, going down the hill, and it is 90 ° to 135 ° that metal friction post 27 upper end and analogue simulation do the angle spraying tunnel 4 inwall.Analogue simulation does that spray tunnel 4 is anterior, respectively installed two metal friction pillars immediately below middle part and rear portion, amounts to the six roots of sensation, and go up a hill in the tunnel that can realize different angle and goes down the hill in tunnel.
In another preferred embodiment of the present invention, as shown in Figure 3, above-mentioned metal friction post 27 comprises the first vertical portion 36, first vertical portion 36 is provided with the extension 37 of horizontal expansion, the upper end of extension 37 is provided with the first elliptical section 38, first elliptical section 38 is provided with the second vertical portion 39, vertical portion 39, second is provided with in the second elliptical section 32, second elliptical section 32 and is provided with support end 33.And above-mentioned analogue simulation dry spray tunnel 4 is being provided with monorail crane 7 with forced air duct 6, pull-out type air duct 24 corresponding position, tunnel 4 has been evenly arranged multiple monorail crane transverse moving mechanism 8 in analogue simulation dry spray, and forced air duct 6, pull-out type air duct 24 can be moved along corresponding monorail crane.
Further, above-mentioned forced air duct 6 is connected with a forced blower fan 1 by the first flexible air duct converter 3, and forced blower fan 1 is configured with the first electrodeless frequency converter 2; Forced air duct 6 is provided with automation air duct 5.Automation air duct 5 is connected with forced air duct 6, as shown in Figure 4, multiple baffler 28 has been evenly arranged in automation air duct 5, multiple air-out bar gap is formed between baffler 28, in order to further improve automation air duct 5 air-out wind speed and inner distinguished and admirable pressure, arrange baffler 28 can turn an angle, rotational angle is respectively 15 °, 30 °, 45 °, 60 °, 75 °, 90 °.Baffler 28 formed air-out bar gap be two kinds, the first is two isometric air-out bar gaps, the second be three grades grow wind bar gap.Wherein, the length computation mode of the first air-out bar gap is: 1/3* (π R) is by getting two, its two ends isometric line segment cutting air-out bar gap after semicircle trisection; The length computation mode of the second air-out bar gap is: 1/5* (π R) is by getting its two ends and middle three isometric line segment cutting air-out bar gaps after semicircle five decile.One end of automation air duct 5 is provided with ventilation butterfly valve 31, and ventilation butterfly valve 31 can adopt to transfer and regulate ventilation butterfly valve, is controlled, handled easily by the remote controller of correspondence.The two ends of automation air duct 5 are provided with the inner air velocity transducer 25 of air duct, the inner distinguished and admirable pressure sensor 26 of air duct, for collecting related data information.
Further, above-mentioned pull-out type air duct 24 is connected with a pull-out type Wet-type dust-removal fan 23 by the second flexible air duct converter 34, pull-out type Wet-type dust-removal fan 23 is configured with the second electrodeless frequency converter 35, can by the electrodeless frequency converter 35 of the first electrodeless frequency converter 2, second adjust analogue simulation do spray tunnel 4 in distinguished and admirable.The air quantity scope of forced blower fan 1 is 0-980m 3/ min, the air quantity of pull-out type Wet-type dust-removal fan 23 is 100-700m 3/ min, water consumption is about 2m 3/ h.Forced blower fan 1, pull-out type Wet-type dust-removal fan 23 can single use or common use all can make to be formed in analogue simulation dry spray tunnel 4 distinguished and admirable, the exhausting amount in the blower fan unit interval can be controlled by the rotating speed of corresponding frequency converter change blower fan, analogue simulation is done in spray tunnel 4 and produces different wind speed, thus each parameter value under different wind friction velocity can be measured.
And above-mentioned emulation spraying machine 14 is connected with a high-pressure pump 22 by spray pipe 20, high-pressure pump 22 is connected with storage tank 21, for emulation spraying machine 14 provides water source.Sensor of dust concentration 26 in air velocity transducer 25, tunnel has been evenly arranged in multiple tunnel in above-mentioned analogue simulation dry spray tunnel 4.Air velocity transducer 25 in 24 tunnels is installed altogether in analogue simulation dry spray tunnel 4, on the dry breathing zone height (distance ground level is 1.55m) spraying side crag 1.5m, 3m and 4m, air velocity transducer 25 in eight tunnels is respectively arranged along journey in distance, fore-and-aft distance in adjacent tunnel between air velocity transducer 25 is 5m, wherein, the vertical distance of meeting head on that meet head on first air velocity transducer 25 that often row does spray front end, tunnel 4 near analogue simulation does spray front end, tunnel 4 to analogue simulation is 5m.In tunnel, the quantity of sensor of dust concentration 26 is the same with air velocity transducer in tunnel 25 with arrangement, is arranged in each tunnel immediately below air velocity transducer 25, and distance analogue simulation dry spray tunnel 4 is highly 1.55m.
The present invention also provided a kind of method using above-mentioned nature imitation experiment device, and it comprises the following steps:
A, the first electrodeless frequency converter 2 and/or the second electrodeless frequency converter 35 is regulated to realize different wind speed size, generation is stablized distinguished and admirable, regulate automation air duct 5 to form multipath to a certain degree to Whirl deposite tank simultaneously, the distinguished and admirable analogue simulation that enters extruded from forced air duct 6 does spray tunnel 4, distinguished and admirablely encounter after analogue simulation does spray the meeting head on of front end, tunnel 4, wind direction alee side migration, if only measure distribution of air flow rule, then do not open spraying negative pressure secondary device for reducing dust 15, material loading Chan Chen mechanism 19, stir Chan Chen mechanism 17, jet Chan Chen mechanism 12 with spray the Chan Chen mechanism 13 that rebounds, distinguished and admirable data are collected by air velocity transducer in tunnel 25, obtain dry spray operation area distribution of air flow rule in analogue simulation dry spray tunnel 4,
B, to research wind-dirt migration rule, then immediately above-mentioned steps A, open material loading Chan Chen mechanism 19, stir Chan Chen mechanism 17, jet Chan Chen mechanism 12 with spray rebound in Chan Chen mechanism 13 one or several, simulation produces certain density dust, collect related data by sensor of dust concentration 26 in air velocity transducer in tunnel 25 and tunnel, obtain wind-dirt migration rule that analogue simulation does dry spray single dirt source, operation area or many dirt source in spray tunnel 4;
C, to research wind-dirt-mist three-phase medium migration, coupling, settlement law, then and then above-mentioned steps B, open material loading Chan Chen mechanism 19, stir Chan Chen mechanism 17, jet Chan Chen mechanism 12 with spray some in Chan Chen mechanism 13 or certain is several of rebounding, complete relevant wind speed size to be collected, after dust concentration data, open spraying negative pressure secondary device for reducing dust 15, negative pressure field and spray field is produced in spraying negative pressure secondary device for reducing dust 15, carry dust to gas to catch, distinguished and admirable, there is three-phase medium and migrate in dust and droplet simulating in tunnel, coupling, sedimentation, by air velocity transducer in tunnel 25, in tunnel, sensor of dust concentration 26 collects related data, obtain the wind-dirt-mist migration in single dirt source or many dirt source, coupling, settlement law, draw the best spray parameters needed for sedimentation of different-grain diameter scope dust,
D, to the control dust removing effects under the different air output of research automation air duct, then and then above-mentioned steps C, the rotational angle of quantitative change ventilation butterfly valve 31, thus the control realized automation air duct 5 air output, realize the closed air curtain of different-effect, related data is collected, the control dust removing effects of the wind-dirt-mist obtaining single dirt source or many dirt source under air curtain effect closed by wind wall air duct and migration, coupling, settlement law by sensor of dust concentration 26 in air velocity transducer in tunnel 25, tunnel.
In order to further describe the present invention, below enumerating more detailed embodiment and being described.
Regulate the height of metal friction pillar 27, determine draft type and connect forced blower fan 1, pull-out type Wet-type dust-removal fan 23, the forced blower fan 1 of selective actuation, pull-out type Wet-type dust-removal fan 23, regulate fan parameter by corresponding stepless frequency conversion device, and measure the airflow parameter that mine laneway does spray operation area.
Fix material loading Chan Chen mechanism 19, stirring Chan Chen mechanism 17, jet Chan Chen mechanism 12 and the position and the relative position that spray the Chan Chen mechanism 13 that rebounds, draft type is selected according to requirement of experiment, after system run all right, open material loading Chan Chen mechanism 19, stir Chan Chen mechanism 17, jet Chan Chen mechanism 12 with spray that rebound in Chan Chen mechanism 13 one or more, under measuring different ventilation condition, different produce single dirt source under dirt position or many dirt source distinguished and admirable-dust migrates, Coupling Rule.
Fix material loading Chan Chen mechanism 19, stir Chan Chen mechanism 17, jet Chan Chen mechanism 12 and the position and the relative position that spray the Chan Chen mechanism 13 that rebounds, ventilate according to requirement of experiment, after system run all right, open material loading Chan Chen mechanism 19, stir Chan Chen mechanism 17, jet Chan Chen mechanism 12 with spray that to rebound in Chan Chen mechanism 13 one or more, open some sprayings negative pressure secondary depositing dust 15 simultaneously and produce spray field, adjusting high-pressure pump 22 provides the spray field of different pressures, under measuring different ventilation sides condition, different dirt source, different spray nozzles quantity, atomizing de-dusting efficiency under different atomisation pressure and wind-dirt-mist migration, coupling, settlement law.
Fix material loading Chan Chen mechanism 19, stir Chan Chen mechanism 17, jet Chan Chen mechanism 12 and the position and the relative position that spray the Chan Chen mechanism 13 that rebounds, carry out ventilating according to requirement of experiment and regulate the ventilation dish valve 31 of automation air duct 5, after system run all right, open material loading Chan Chen mechanism 19, stir Chan Chen mechanism 17, jet Chan Chen mechanism 12 with spray that to rebound in Chan Chen mechanism 13 one or more, open some sprayings negative pressure secondary depositing dust 15 simultaneously and produce spray field, adjusting high-pressure pump 22 provides the spray field of different pressures, under measuring different ventilation sides condition, under different closed air curtain condition, different dirt source, different spray nozzles quantity, air curtain spraying control efficiency of dust collection under different atomisation pressure and wind-dirt-mist migration, coupling, settlement law.
In sum, the present invention simulation Gan Pen operation area, tunnel in analogue simulation dry spray tunnel 4 is distinguished and admirable, air curtain, the situation of dust and spraying, then measure analogue simulation by sensor of dust concentration 26 in air velocity transducer in tunnel 25 and tunnel and do the related data of spraying in tunnel 4, thus under determining different draft type, different air curtain condition leeward-dirt-mist migration, coupling, settlement law, show that mine laneway does the optimal parameter of spray operation area dust removal by ventilation and atomizing de-dusting, for arranging automation air duct scientifically and rationally, draft type, atomizing dust-removing system, determine best atomisation pressure, controlled wind speed realizes best spray effect and detects the dust-laying effect of spray outfit, research and development high efficiency nozzle provides reliable technical support.The present invention is build according to the ratio of 1:1 according to model and realistic model, can according to measuring on-the-spot actual parameter, the dust-proof operation of guide field.
Certainly; more than illustrate and be only preferred embodiment of the present invention; the present invention is not limited to enumerate above-described embodiment; should be noted that; any those of ordinary skill in the art are under the instruction of this manual; made all equivalently to substitute, obvious variant, within the essential scope all dropping on this manual, protection of the present invention ought to be subject to.

Claims (10)

1. do the nature imitation experiment device of the dust migration of spray operation area and control for mine laneway for one kind, it comprises the analogue simulation dry spray tunnel of being made up of tempered glass, it is characterized in that, analogue simulation is done in spray tunnel and is furnished with the forced air duct for importing wind and the pull-out type air duct for extracting wind out, analogue simulation dry spray is provided with simulation mining rail in tunnel, simulation mining rail is provided with emulation material loading machine, emulation mixer and emulation spraying machine, emulation feeder is provided with material loading Chan Chen mechanism, emulation mixer is provided with and stirs Chan Chen mechanism, emulation spraying machine is provided with jet, jet is provided with jet Chan Chen mechanism, jet does the injection bounce-back Chan Chen mechanism of spraying in tunnel towards being arranged in analogue simulation, emulation spraying machine is provided with spraying negative pressure secondary device for reducing dust.
2. nature imitation experiment device according to claim 1, it is characterized in that, above-mentioned analogue simulation is done in spray tunnel and is evenly arranged the many metal friction posts of going up a hill for simulating in tunnel, going down the hill, and it is 90 ° to 135 ° that metal friction post upper end and analogue simulation do the angle spraying tunnel inwall.
3. nature imitation experiment device according to claim 2, it is characterized in that, above-mentioned metal friction post comprises the first vertical portion, first vertical portion is provided with the extension of horizontal expansion, the upper end of extension is provided with the first elliptical section, first elliptical section is provided with the second vertical portion, the second vertical portion is provided with the second elliptical section, the second elliptical section is provided with support end.
4. nature imitation experiment device according to claim 1, it is characterized in that, above-mentioned analogue simulation dry spray tunnel is being provided with monorail crane with forced air duct, pull-out type air duct corresponding position, tunnel has been evenly arranged multiple monorail crane transverse moving mechanism in analogue simulation dry spray, and forced air duct, pull-out type air duct can be moved along corresponding monorail crane.
5. nature imitation experiment device according to claim 4, is characterized in that, above-mentioned forced air duct is connected with a forced blower fan by the first flexible air duct converter, and forced blower fan is configured with the first electrodeless frequency converter; Forced air duct is provided with automation air duct.
6. nature imitation experiment device according to claim 5, it is characterized in that, above-mentioned automation air duct is connected with forced air duct, multiple baffler has been evenly arranged in automation air duct, form multiple air-out bar gap between baffler, one end of automation air duct is provided with ventilation butterfly valve; The two ends of automation air duct are provided with the inner air velocity transducer of air duct, the inner distinguished and admirable pressure sensor of air duct.
7. nature imitation experiment device according to claim 4, is characterized in that, above-mentioned pull-out type air duct is connected with a pull-out type Wet-type dust-removal fan by the second flexible air duct converter, and pull-out type Wet-type dust-removal fan is configured with the second electrodeless frequency converter.
8. nature imitation experiment device according to claim 1, is characterized in that, above-mentioned emulation spraying machine is connected with a high-pressure pump by spray pipe, and high-pressure pump is connected with storage tank.
9. nature imitation experiment device according to claim 1, is characterized in that, to be evenly arranged in multiple tunnel sensor of dust concentration in air velocity transducer, tunnel in above-mentioned analogue simulation dry spray tunnel.
10. use a method for nature imitation experiment device as claimed in claim 1, it comprises the following steps:
A, the first electrodeless frequency converter and/or the second electrodeless frequency converter is regulated to realize different wind speed size, generation is stablized distinguished and admirable, regulate automation air duct formation multipath to a certain degree to Whirl deposite tank simultaneously, the distinguished and admirable analogue simulation that enters extruded from forced air duct does spray tunnel, distinguished and admirablely encounter after analogue simulation does spray the meeting head on of front end, tunnel, wind direction alee side migration, if only measure distribution of air flow rule, then do not open spraying negative pressure secondary device for reducing dust, material loading Chan Chen mechanism, stir Chan Chen mechanism, jet Chan Chen mechanism to rebound Chan Chen mechanism with spraying, distinguished and admirable data are collected by air velocity transducer in tunnel, obtain analogue simulation dry spray Nei Ganpen operation area, tunnel distribution of air flow rule,
B, to research wind-dirt migration rule, then immediately above-mentioned steps A, open material loading Chan Chen mechanism, stir Chan Chen mechanism, jet Chan Chen mechanism with spray rebound in Chan Chen mechanism one or several, simulation produces certain density dust, collect related data by sensor of dust concentration in air velocity transducer in tunnel and tunnel, obtain wind-dirt migration rule that analogue simulation does spray single dirt source, Nei Ganpen operation area, tunnel or many dirt source;
C, to research wind-dirt-mist three-phase medium migration, coupling, settlement law, then and then above-mentioned steps B, open material loading Chan Chen mechanism, stir Chan Chen mechanism, jet Chan Chen mechanism with spray some in Chan Chen mechanism or certain is several of rebounding, complete relevant wind speed size to be collected, after dust concentration data, open spraying negative pressure secondary device for reducing dust, negative pressure field and spray field is produced in spraying negative pressure secondary device for reducing dust, carry dust to gas to catch, distinguished and admirable, there is three-phase medium and migrate in dust and droplet simulating in tunnel, coupling, sedimentation, by air velocity transducer in tunnel, in tunnel, sensor of dust concentration collects related data, obtain the wind-dirt-mist migration in single dirt source or many dirt source, coupling, settlement law, draw the best spray parameters needed for sedimentation of different-grain diameter scope dust,
D, to the control dust removing effects under the different air output of research automation air duct, then and then above-mentioned steps C, the rotational angle of quantitative change ventilation butterfly valve, thus the control realized automation air duct air output, realize the closed air curtain of different-effect, related data is collected, the control dust removing effects of the wind-dirt-mist obtaining single dirt source or many dirt source under air curtain effect closed by wind wall air duct and migration, coupling, settlement law by sensor of dust concentration in air velocity transducer, tunnel in tunnel.
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